Building block



E. LUCAS BUILDING BLOCK Jan. 31, 1928.

Original Filed April 1. 1926 92 I glvwc/ntoz 35 AZ: Swe l/net;

Patented Jan. 31, 1928.

UNITED STATES nuennn Lucas, or BABYLON, New roan.

PATENT OFFICE.

BUILDING BLOCK.

Original application filed April 1, 1926, Serial No. 99,076. Divided and this application filed niiy a9,

. 1926. Serial No. 125,630.

This invention relates to building blocks. In my co-pen-ding application, Serial No. 99,076, of which this application is a division, I disclosed therein a system of heating,

drying or cooling buildings wherein the walls were formed of hollow building blocks. The hollow building blocks at present construct ed are not adaptable to carryout such a sys tem in an efficient manner.

One of the objects of this invention is the construction of a hollow building block which will permit of its utilization as a conduit for a system of heating, drying or cooling buildings.

Another object of this invention is to provide building blocks having means for centering and locking one with respect to the other. Still another object of this invention is to provide building blocks having 99 communicating passages, Still another object of this invention is to provide a build ing block adaptedzto receive beam supportin means.

ferring to the drawings:

Figure 1 is a perspective view of a building block embodying the principles of my invention.

Figure 2 is a plan view of a section of a wall formed of blocks embodying the principles of my invention.

Figure 3 is a cross sectional view of a building block.

In carrying out my invention, I propose to provide a hollow building block of plastic 1 ll material such as hollow tile, cement, etc, of

special construction.

Block 1 is hollow and divided centrally and horizontally thereof into four compartments separated by intersecting dividing walls 2, 2', which also function as strengthening ribs. Centrally of block 1, I provide a passage 3 communicating with the compartments and terminating in openings in the walls of the blocks.

4 block the top and bottom wall and dividing wall 2 have semi-circular cutout portions to form half of a passageway 3 similar to passageway 3. A removable collar 4is adapted to fit in passages 3, 3, of the top and bottom walls of block 1. Removable collar 4 has neck portions 4, 4". The neck portions fit into the openings of passage 3 or 8, of the block in the tiers above and below.

I propose to provide a special corner block 8 having a hollow central passage 9'there- At the end of each.

through. Corner block 8 *forms an angle and terminates in two U shaped ends adapted to receive corresponding shaped lugs 10 carried by wall. blocks 11 at one end. Central passages 9 can be filled with reinforced cement if desired. The locking wall block 11, is keyed to the adjacent wall blocks by collars 4.

It will be noted that in laying the blocks the necks 4 4 off collars l are inserted in the passages 3 or 3, the mortar being laid or spread on the top surface up to the height of the collar portion 4 which acts as a gauge as well as acentering and locking device not only for the adjacent tiles but also for the tiles forming the tier above. The collars 4: close the openings in the blocks 1, and thereby prevent the mortar 12 from being inserted into the hollow interior and the necks 4, 4 extending above the height of the mortar, none of the latter can drop into passages 3 or 3. It should be further noted that such a construction permits of the insertion of angle supports 13 between two tiers of blocks 1, and the imbedding of such supports inthe mortar. These angle supports operate to carry the beams 7. Y

I preferably make collars 4:, separable and not integral with the blocks in order to permit of a readier and cheaper shipment and to prevent breakage.

It will thus be seen that I have shown a building block of strong and cheap construction having passages therethrough to permit of use in connection with the system of heating and ventilating buildings and havin centering and interlocking means.

What I claim is:

1. A building wall comprising hollow building blocks, openings in the top and bottom walls of said building blocks, semicircular cutout portions at the ends-of said tions of the adjacent blocks in the superposed tier.

2. A building wall, comprising tiers of hollow blocks, the ends of said hollow blocks having semi-circular cutout portions forming a cylindrical opening in the top and bottom walls of theblocks, openings 1n the top and bottom walls of the blocks centrally thereof in combination with hollow locking and centering means fitting in the wall openings of one tier and in the cylindrical openings formed by the junction of the cutout ends of the superposed tier of hollow blocks.

3. A building wall composed of hollow blocks, said hollow blocks having interior strengthening walls forming longitudinal compartments thereln, the wall ends of said buildin blocks havin cutout c lindrical b b y portions the strengthening walls having cutout cylindrical portions in alignment with the cutout cylindrical portions of the top .and bottom walls. said cutout portions forming a cylindrical passageway through the junction of each pair of blocks in each tier in combination with hollow centering and locking means fitting in said cutout portions.

Signed at New York, in the county of New York and State of New York, this l5th 20 day of July, A. D. 1926.

EUGENE LUCAS. 

